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drm/tegra: dp: Turn link capabilities into booleans

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Rather than storing capabilities as flags in an integer, use a separate
boolean per capability. This simplifies the code that checks for these
capabilities.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2015-12-03 12:45:45 +01:00
parent c728e2d4a6
commit 27ba465ce3
3 changed files with 36 additions and 8 deletions
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22
drivers/gpu/drm/tegra/dp.h
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@@ -7,16 +7,31 @@
#ifndef DRM_TEGRA_DP_H
#define DRM_TEGRA_DP_H 1
#include <linux/types.h>
struct drm_dp_aux;
#define DP_LINK_CAP_ENHANCED_FRAMING (1 << 0)
/**
* struct drm_dp_link_caps - DP link capabilities
*/
struct drm_dp_link_caps {
/**
* @enhanced_framing:
*
* enhanced framing capability (mandatory as of DP 1.2)
*/
bool enhanced_framing;
};
void drm_dp_link_caps_copy(struct drm_dp_link_caps *dest,
const struct drm_dp_link_caps *src);
/**
* struct drm_dp_link - DP link capabilities and configuration
* @revision: DP specification revision supported on the link
* @max_rate: maximum clock rate supported on the link
* @max_lanes: maximum number of lanes supported on the link
* @capabilities: bitmask of capabilities supported on the link
* @caps: capabilities supported on the link (see &drm_dp_link_caps)
* @rate: currently configured link rate
* @lanes: currently configured number of lanes
*/
@@ -24,7 +39,8 @@ struct drm_dp_link {
unsigned char revision;
unsigned int max_rate;
unsigned int max_lanes;
unsigned long capabilities;
struct drm_dp_link_caps caps;
unsigned int rate;
unsigned int lanes;